Allow column reordering via drag and drop
Allow column resizing

You can resize and reorder the columns of the grid. Resizing by default is turned on, reordering is turned off by default.

To control resizing, just set the Resizable boolean property of the respective column. Column Reordering is controlled by the top-level ColumnReordering property.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="JQSuiteASPNETExample.examples.functionality.column_reorder_resize._default" %>
<%@ Register Assembly="Trirand.Web" TagPrefix="trirand" Namespace="Trirand.Web.UI.WebControls" %>

<!DOCTYPE html>
<html lang="en-us">
<head id="Head1" runat="server">
    <meta charset="utf-8">
    <title>jqGrid ASP.NET - reorder and resize columns</title>
    <!-- The jQuery UI theme that will be used by the grid -->
    <link rel="stylesheet" type="text/css" media="screen" href="" />
    <!-- The jQuery UI theme extension jqGrid needs -->
    <link rel="stylesheet" type="text/css" media="screen" href="/themes/ui.jqgrid.css" />
    <!-- jQuery runtime minified -->
    <script src="/js/jquery-3.2.1.min.js" type="text/javascript"></script>
    <!-- The localization file we need, English in this case -->
    <script src="/js/trirand/i18n/grid.locale-en.js" type="text/javascript"></script>
    <!-- The jqGrid client-side javascript -->
    <script src="/js/trirand/jquery.jqGrid.min.js" type="text/javascript"></script>        
    <!-- The "sortable" behaviour is needed by jqGrid for column resizing -->
    <script src="../../../../js/jquery-ui-1.9.2.sortable.min.js"></script>        
    <style type="text/css">    
        body, html { font-size: 80%; }    

    <form id="form1" runat="server">

    <asp:SqlDataSource runat="server" ID="SqlDataSource1" 
        ConnectionString="<%$ ConnectionStrings:SQL2008_661086_trirandEntities %>"                 
        SelectCommand="SELECT [OrderID], [RequiredDate], [ShipName], [ShipCity], [Freight] FROM [Orders]">
    <asp:CheckBox runat="server" ID="ColumnReorderCheckBox" AutoPostBack="true" Checked="true" />
    <span style="font-size: 135%; font-family: Verdana; font-weight: bold">Allow column reordering via drag and drop</span>
    <br />
    <asp:CheckBox runat="server" ID="ColumnResizeCheckBox" AutoPostBack="true" Checked="true" />
    <span style="font-size: 135%; font-family: Verdana; font-weight: bold">Allow column resizing</span>
    <br />
    <br /><br />
    <trirand:JQGrid runat="server" 
            <trirand:JQGridColumn Resizable="true" DataField="OrderID" HeaderText="Order ID" PrimaryKey="True" Width="50" />
            <trirand:JQGridColumn Resizable="true" DataField="RequiredDate" DataFormatString="{0:d}"/>
            <trirand:JQGridColumn Resizable="true" DataField="ShipName" Width="200" />
            <trirand:JQGridColumn Resizable="true" DataField="ShipCity" />
            <trirand:JQGridColumn Resizable="true" DataField="Freight" />
        <AppearanceSettings ShowRowNumbers="true" />     
    <br /><br />    
    <trirand:codetabs runat="server" id="tabs"></trirand:codetabs> 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Trirand.Web.UI.WebControls;

namespace JQSuiteASPNETExample.examples.functionality.column_reorder_resize
    public partial class _default : System.Web.UI.Page
        protected override void OnInit(EventArgs e)
            ColumnReorderCheckBox.CheckedChanged += new EventHandler(ColumnReorderCheckBox_CheckedChanged);
            ColumnResizeCheckBox.CheckedChanged += new EventHandler(ColumnResizeCheckBox_CheckedChanged);

        void ColumnResizeCheckBox_CheckedChanged(object sender, EventArgs e)
            foreach (JQGridColumn column in JQGrid1.Columns)
                column.Resizable = ColumnResizeCheckBox.Checked;

        void ColumnReorderCheckBox_CheckedChanged(object sender, EventArgs e)
            JQGrid1.ColumnReordering = ColumnReorderCheckBox.Checked;

        protected void Page_Load(object sender, EventArgs e)

Switch theme:

Theming is based on the very popular jQuery ThemeRoller standard. This is the same theming mechanism used by jQuery UI and is now a de-facto standard for jQuery based components. The benefits of using ThemeRoller are huge. We can offer a big set of ready to use themes created by professional designers, including Windows-like themes (Redmond), Apple-like theme (Cupertino), etc. In addition to that any jQuery UI controls on the same page will pick the same theme.

Last, but not least, you can always roll your own ThemeRoller theme, using the superb Theme Editor

To use a theme, simply reference 2 Css files in your Html <head> section - the ThemeRoller theme you wish to use, and the jqGrid own ThemeRoller Css file. For example (Redmond theme):

<link rel="stylesheet" type="text/css" media="screen" href="/themes/redmond/jquery-ui-1.8.2.custom.css" />
<link rel="stylesheet" type="text/css" media="screen" href="/themes/ui.jqgrid.css" />